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css-animations

Create CSS keyframe animations with deterministic seek behavior for HyperFrames runtime.

1|Updated Apr 24, 2026
Search Tags:#motion-design#web-animations#css-animations#frontend-animation#hyperframes#css-keyframes#animation-fill-mode
One-click install
npx skills add https://github.com/automatedigital/spark --skill css-animations-automatedigital
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: css-animations
Source: https://github.com/automatedigital/spark/tree/main/skills/creative/css-animations
Command: npx skills add https://github.com/automatedigital/spark --skill css-animations-automatedigital

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill eliminates the frustration of CSS animations that fail to seek correctly during HyperFrames preview and rendering, ensuring your motion effects behave consistently across development and production environments.

Core Features & Use Cases

  • HyperFrames-Compatible Animation Patterns: Provides adapter patterns for CSS keyframes, animation-delay timing, animation-fill-mode, and animation-play-state that work reliably with HyperFrames' runtime adapter.
  • Common Motion Use Cases: Supports decorative loops, shimmer, glow, mask effects, and simple single-element entrance animations for HyperFrames scenes.
  • Built-in Validation Guidance: Includes instructions for running HyperFrames lint and validate commands to catch animation issues before deployment.

Quick Start

Use the css-animations skill to add a 3-iteration pulsing ring animation to a HyperFrames scene element that retains its final state after playback ends.

Frequently Asked Questions about css-animations

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I create CSS keyframe animations that seek correctly during HyperFrames preview and rendering?▼

To create seekable CSS animations for HyperFrames, use finite animation durations, fixed iteration counts, and pre-initialized DOM elements to ensure the runtime adapter can deterministically seek keyframes during preview and rendering.

Why does my CSS animation fail to seek or play consistently in HyperFrames?▼

Your CSS animation might lack finite duration, fixed iteration counts, or pre-initialized DOM elements. HyperFrames requires deterministic seek behavior, so infinite loops or dynamic DOM injections break consistent preview and rendering.

What CSS animation properties are supported for deterministic seek behavior in HyperFrames?▼

Supported properties include CSS keyframes, animation-delay timing, animation-fill-mode configurations, and animation-play-state controls for decorative motion, shimmer, glow, and single-element entrance effects.

Can I use animation-fill-mode to retain the final state of a CSS animation in HyperFrames?▼

Yes, you can use animation-fill-mode to retain the final state of CSS animations in HyperFrames. This ensures decorative loops and single-element entrance effects maintain their visual end state after playback concludes.

What are the limitations when authoring frontend animations for HyperFrames scenes?▼

Limitations include requiring finite animation duration and fixed iteration counts for deterministic seeking. Complex multi-element sequences or infinite decorative loops may not seek correctly without adapter patterns and validation commands.

How do I validate CSS animations to catch motion issues before HyperFrames deployment?▼

You can validate CSS animations by running HyperFrames lint and validate commands to catch motion issues before deployment. This verifies that keyframe timing and play-state configurations meet deterministic seek requirements.

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